custodis



Patented Mar. 7, I899.

A. CUSTODIS.

l N D I C A T 0 R.

(Application flied Feb. 19, 1898.)

2 Sheets8heet I.

(No Model.)

TH: Noam PEYERS co., Puo-ra umo WASHINGTON. n. c"

No. 620,702. Patented Mar. 7, I899. A. CUSTUDIS.

INDICATOR.

Applicatioh filed Feb. 19, 1898) (No Model.) 2 SheetsSheet 2.

M X/-4 PM Tn: mums urns 00., Puma-Una, WASNINGTON, c c.

UNITED STATES PATENT OFFICE.

ALPHONS OUSTODIS, OF DUSSELDORF,GERMANY.

INDICATOR.

SPECIFIGATTION forming part of Letters Patent No. 620,702, dated March7, 1899.

Application filed February 19, 1898- Serial No. 670,917. (No model.)

To all whom, it may concern/.-

Be it known that I, ALPHoNs OUsToDIs, a citizen of the German Empire,and a resident of Dusseldorf, Germany, have invented a certain new anduseful Improved Indicator, of which the following is a specification.

This invention relates to an improved indicator.

In the accompanying drawings, Figure 1 is a plan of a compass embodyingmy invention; Fig. 2, a vertical section through the same; Fig. 3, adetail of the lifting mechanism; and Fig. l is a plan of the indicator,showing it connected to a registering device.

The letter 02 represents a magnetic needle, the shaft a of which isconnected to a galvanic battery or other source of electric energy by aconductor Z. Below the needle there are arranged a circle of insulatedcontacts or end pieces 0, each one of which is provided with a separateconducting=wire Z. The contacts 6 are supported upon a common annularhorizontal plate 0', provided with a huh I], encircling shaft 0'. Thishub is adapted to be engaged by one or more cams or tapp'ets (Z,actuated by a clockwork or other means (1, so that the plate 0, carryingthe contacts 0,- is alternately raised and lowered. In this way thecontact 6 immediately below the needle 42 is put into momentary metalliccommunication therewith or with a metal plate attached thereto to closethe circuit. The current will travel from the battery through wire Z,shaft a, needle 12, contact 8, communicating therewith, and conductor Zto p the electromagnet of an indicating or registering device D and backto the battery by a single return-wire Z Fig. 4:. Thus the magnet willattract the pointer or registeringpencil to change its position andindicate or record the temporary position of the needle or. If theneedle it changes its position, it will contact with another of thepieces e to close the circuit of another eleotromagnet and a secondposition will be recorded. In this way the instrument indicates orrecords accurately and at a distance the variations of the needle atstated intervals.

What I claim is An electric distance-indicator composed of a needle incircuit, a vertically-movable plate having a hub that surrounds theneedle-shaft, insulated contacts supported upon the plate, a tappetadapted to alternately. raise and lower the plate, a series of wiresthat separately connect the contacts with the electromagnets of adistant recording or indicating instrument, and a single return-wire,substantially as specified.

Signed by me at Dusseldorf, Germany, this 24th day of January, A. D.1898.

ALPI'IONS OUSTODIS.

